3 files changed, 40 insertions, 9 deletions
diff --git a/apt-pkg/cacheset.cc b/apt-pkg/cacheset.cc
index 5e60ef54a..db34c4a20 100644
--- a/apt-pkg/cacheset.cc
+++ b/apt-pkg/cacheset.cc
@@ -441,14 +441,6 @@ bool VersionContainerInterface::FromString(VersionContainerInterface * const vci
 					   CacheSetHelper::VerSelector const fallback,
 					   CacheSetHelper &helper,
 					   bool const onlyFromName) {
-	PackageSet pkgset;
-	if(FileExists(pkg)) {
-		helper.PackageFrom(CacheSetHelper::STRING, &pkgset, Cache, pkg);
-		if(pkgset.empty() == true)
-			return false;
-		return VersionContainerInterface::FromPackage(vci, Cache, pkgset.begin(), fallback, helper);
-	}
-
 	std::string ver;
 	bool verIsRel = false;
 	size_t const vertag = pkg.find_last_of("/=");
@@ -457,6 +449,8 @@ bool VersionContainerInterface::FromString(VersionContainerInterface * const vci
 		verIsRel = (pkg[vertag] == '/');
 		pkg.erase(vertag);
 	}
+
+	PackageSet pkgset;
 	if (onlyFromName == false)
 		helper.PackageFrom(CacheSetHelper::STRING, &pkgset, Cache, pkg);
 	else {
diff --git a/apt-pkg/sourcelist.cc b/apt-pkg/sourcelist.cc
index 2100b5d3c..56df976e8 100644
--- a/apt-pkg/sourcelist.cc
+++ b/apt-pkg/sourcelist.cc
@@ -11,6 +11,7 @@
 #include<config.h>
 
 #include <apt-pkg/sourcelist.h>
+#include <apt-pkg/cmndline.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/strutl.h>
@@ -20,6 +21,7 @@
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/debindexfile.h>
 
 #include <ctype.h>
 #include <stddef.h>
@@ -536,7 +538,38 @@ std::vector<pkgIndexFile*> pkgSourceList::GetVolatileFiles() const	/*{{{*/
 									/*}}}*/
 void pkgSourceList::AddVolatileFile(pkgIndexFile * const File)		/*{{{*/
 {
-   if (File != NULL)
+   if (File != nullptr)
       VolatileFiles.push_back(File);
 }
 									/*}}}*/
+bool pkgSourceList::AddVolatileFile(std::string const &File)		/*{{{*/
+{
+   if (File.empty() || FileExists(File) == false)
+      return false;
+
+   if (flExtension(File) == "deb")
+      AddVolatileFile(new debDebPkgFileIndex(File));
+   else
+      return false;
+
+   return true;
+}
+									/*}}}*/
+void pkgSourceList::AddVolatileFiles(CommandLine &CmdL, std::vector<const char*> * const VolatileCmdL)/*{{{*/
+{
+   std::remove_if(CmdL.FileList + 1, CmdL.FileList + 1 + CmdL.FileSize(), [&](char const * const I) {
+      if (I != nullptr && (I[0] == '/' || (I[0] == '.' && I[1] == '/')))
+      {
+	 if (AddVolatileFile(I))
+	 {
+	    if (VolatileCmdL != nullptr)
+	       VolatileCmdL->push_back(I);
+	 }
+	 else
+	    _error->Error(_("Unsupported file %s given on commandline"), I);
+	 return true;
+      }
+      return false;
+   });
+}
+									/*}}}*/
diff --git a/apt-pkg/sourcelist.h b/apt-pkg/sourcelist.h
index 47a562d18..9c2d10a46 100644
--- a/apt-pkg/sourcelist.h
+++ b/apt-pkg/sourcelist.h
@@ -46,6 +46,7 @@ class pkgTagSection;
 class pkgAcquire;
 class pkgIndexFile;
 class metaIndex;
+class CommandLine;
 
 class pkgSourceList
 {
@@ -129,6 +130,9 @@ class pkgSourceList
     *  @param File is an index file; pointer-ownership is transferred
     */
    void AddVolatileFile(pkgIndexFile * const File);
+   bool AddVolatileFile(std::string const &File);
+   void AddVolatileFiles(CommandLine &CmdL, std::vector<const char*> * const VolatileCmdL);
+
    /** @return list of files registered with #AddVolatileFile */
    std::vector<pkgIndexFile*> GetVolatileFiles() const;